Die-shifter



S. MENKIN.

DIE SHIFTER. APPLICATION FILED MAY 2|, 1919.

1,349,974. Patented Aug. 17,1920.

' 5] vwemtoz 50/077701? /e77/f7'77 $1,; mmwug UNITED STATES SOLOMON MENKIN, OF NEW YORK, 1:. Y.

DIE-SHIFTER.

Application filed May 21, 1919.

T0 aZZ whom it may concern:

Be it known that I, SOLOMON MENKIN, a citizen of Russia, residing at New York, county of New York, and State of New York, have invented certain new and useful Improvements in Die-Shifters, of which the, following is a specification.

This invention relates to machines for making cloth covered buttons, being an improvement in a previous machine patented by me on July 20th, 1897, under No. 586,821.

In this patent I show a construction and arrangement of the upper dies and their supporting parts whereby said dies are lat erally reciprocated automatically, so as to act upon alternate lower dies in a manner to transfer the button parts in one die to an'adjaccnt die.

The present inventionhas for an to provide a simplified form of reciprocating the upper For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the follow ing description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

Figure l of the drawings is a front view of a portion of a button making machine such as that shown in my above mentioned patent and having the improved die'reciprocating means applied thereto.

Fig. 2 is a side view thereof.

Fig. 3 is a perspective view of the die reciprocating device and its support.

For the main operating parts of the machine reference may be had to my previous patent, a portion of the main standard 1 of the frame with its overhanging guide portion 2, in which is a vertically reciprocable plunger 3, being shown.

Upon the lower end mounted a guide piece 5 carried a head-block 6 carrying the upper dies 7. These parts are as shown in my previous patent and the lower dies with which they cooperate may likewise be as shown. Since the present invention refers only. to the lateral shifting of the upper dies during their vertical movement it is believed that the simple reference to my previous patent for a disclosure of the other portions of the machine will be suflicient.

Upon the vertical face of the standard 1 under the over-hang 2 is mounted a recobj ect device for dies laterally.

of the plunger is in which is slidably Specification of Letters Patent.

Patented A11 17, 1920. Serial No. 298,693.

tangular plate 10 which may be secured in place by bolts 11 fixed at their forward ends in the plate and adapted to pass through suitable apertures in the standard and have locking nuts threaded thereon.

A pair of opposed guide strips are mounted 011 this plate, each of said guide strips having its lower portions extending vertically along the side portions of the plate as shown at 15 and 16 respectively. The upper portions incline inwardly toward one another as at 17 and 18 wardly projecting tongues 19 and 20 formed on their upper ends, these tongues projecting to within a short distance of one another and having vertical adjacent faces. Screws 21 and 22 may secure the guide strips to the plate.

In the space inclosed by the guide strips is located an oscillatory cam 25 which is pivoted centrally between the guide strips as at 26 to the plate 10.

The pivot point of this cam is disposed toward the upper end thereof and the sides thereof are proportioned so that when one side of the cam is against one of the guide strips the opposite side presents portions parallel to the vertical and inclined walls of the other strip and spaced therefrom a distance equal to the distance between the tongues 19 and 20.

As here shown the sides of the cam diverge slightly downward from points ap proximately on a devel with the pivot 26, and then converge rapidly upwardly, to a central point which is, as is obvious, off center with respect to the guide strips when the lower end of the cam is in contact with either of the latter. The lower end of the cam .is preferably substantially on a level with the lower end of the guide strips and may be rounded off as shown.

I rojecting inwardly from the head-block 6 midway between opposite ends of the latter is a rigid pin 30 which projects between the tongues 19 and 20 and is of a diameter to have a sliding fit in the space between said tongues and consequently in the vertical guide slot formed between the cam and either of the guide strips, according to the position of the cam.

In the operation of the machine when the plunger 3 descends the pin 30 strikes the cam 25 on that side of the latter which is against the guide strip at its lower end. The pin is then given a side movement as and have instroke, there being sufficient frictional en gagement between the cam and the face of the plate 10 to insure of the cam remaining in the said position when the pin 30 disengages therefrom. When the plunger again descends the pin engages the other side of the cam and moves the slide in an opposite direction, it being thus apparent that the slide moves alternately in opposite directions as the plunger reciprocates. This feature 1 do not claim as broadly new being disclosed in my previous patent, the present invention residing in the novel arrangement thereof in a compact unitary device.

Thus having described my invention and set forth the manner of its use, what I claim is new and desire to secure by Letters Patent is 1. In a button making machine, a laterally movable die-carrying block, means for reciprocating said block vertically, a member projecting from one side of the die block, and a guiding device adapted to engage said member to move said block a fixed -distance in opposite directions laterally upon respective up and down strokes of the said means.

2. In a button making machine, a laterally movable die-carrying block, means for reciprocating said block vertically, a plate fixed to the frame of the machine, a pair of opposed guide members upon said plate and inclining upwardly toward one another, a pin on the die-carrying block projecting between'the upper ends of the said guide members and having a substantially snug vfit therebetween, and a cam pivoted upon said plate and adapted when swung on one side against one of said guide members to form a guide passage for the said pin between its opposite side and the other guide member.

3. In a button making machine, a laterally movable die-carrying block, means for reciprocating said block vertically, a plate fixed to the frame of the machine, a pair said plate, said guide strips comprising vertical lower face portions, inwardly inclined upper face portions terminating in tongues having ada pinprojecting from the said die-carrying block between the said adjacent vertical faces, and a two sided cam pivoted between its upper and lower ends, said cam acting to move the said pin laterally during the downstroke of the said block and said strips acting to limit the lateral movement of t 1e said pin and to return it to central position on its upstroke.

1-. In a button making machine, ally movable die-carrying block, means for reciprocating said block vertically, a plate fixed to the frame of the machine, a pair of opposed guide strips fixed to said plate, said guide strips comprising'vertical lower face portions, inwardly inclined upper face portions terminating in tongues having adjacent vertical faces, a pin projecting from said die-carrying block between the said adjacent vertical faces, and a two sided cam pivoted between its upper and lower ends, said cam acting to move the said pin laterally during the downstroke of the said block and said strips acting to limit the lateral movement of the said pin and to return it to central position on its upstroke, said cam having straight sides diverging slightly downwardl from points approximately on a level with the pivot point thereof, and converging sharply upwardly from the said points.

5. In a button making machine, a laterally movable die-carrying block, means for reciprocating said block vertically, a plate jacent vertical faces,

fixed to the frame of the machine, a pair.

of opposed guide strips fixed to said plate, said guide strips comprising vertical lower face portions, inwardly inclined upper face portions terminatingin tongues having act j acent vertical faces, a pin projecting from the said die-carrying block between the said. adjacent vertical faces, and a two sided cam pivoted between its upper and lower ends, said cam acting to move the said pin laterally during the downstroke of the said block and said strips acting to limit the'lateral movement of the said pin and to return it to central position on its upstroke, said cam having straight sides diverging slightly downwardly from points approximately on a level with the pivot point thereof, and converging upwardly from the said points, said cam being of less width than the space between the vertical inner facesof the said strips, and proportioned to have one side parallel to the inner faces of one of the strips when the opposite side of the cam is swung against the other strip.

In testimony whereof I have affixed my signature.

a later-N SOLOMON MENKIN. 

